<template>
    <div class="">
        <el-container>
            <el-header class="homeHeader">
                <div class="headerTitle">
                    微人事
                </div>
                <el-dropdown @command="commandHandler">
  <span class="el-dropdown-link">
{{user.name}}<i class="el-icon-arrow-down el-icon--right"><img :src="user.userface" alt=""></i>
  </span>
                    <el-dropdown-menu slot="dropdown">
                        <el-dropdown-item command="userinfo">个人中心</el-dropdown-item>
                        <el-dropdown-item command="setting">设置</el-dropdown-item>

                        <el-dropdown-item command="logout" divided>注销登录</el-dropdown-item>

                    </el-dropdown-menu>
                </el-dropdown>
            </el-header>
            <el-container>
                <el-aside width="200px">
                    <el-menu router unique-opened>
                        <el-submenu :index="index+''" v-for="(item,index) in routes" v-if="!item.hidden" :key="index">
                            <template slot="title">
                                <i style="color: #409eff;margin-right: 5px" :class="item.iconCls"></i>
                                <span>{{item.name}}</span>
                            </template>
                            <el-menu-item :index="child.path" v-for="(child,indexj) in item.children" :key="indexj">
                                {{child.name}}
                            </el-menu-item>
                        </el-submenu>
                    </el-menu>
                </el-aside>
                <el-main>
                    <el-breadcrumb separator-class="el-icon-arrow-right" v-if="this.$router.currentRoute.path!='/home'">
                        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
                        <el-breadcrumb-item>{{this.$router.currentRoute.name}}</el-breadcrumb-item>
                    </el-breadcrumb>
                    <div class="welcomeMessage" v-if="this.$router.currentRoute.path=='/home'">
                        欢迎来到微人事
                    </div>
                    <router-view class="homeRouterView"/>
                </el-main>
            </el-container>
        </el-container>
    </div>
</template>

<script>
    export default {
        name: "Home",
        data() {
            return {
                user: JSON.parse(window.sessionStorage.getItem("user"))//从sessionStorage中取出当前登录用户信息并解析成JSON
            }
        },
        //计算属性，对绑定到菜单上的信息进行返回
        computed: {
            routes() {
                //返回Vue状态管理器中的菜单响应数据
                return this.$store.state.routes;
            }
        },
        methods:{
            commandHandler(command){
                if(command=='logout')
                {
                    this.$confirm('此操作将注销登录用户, 是否继续?', '提示', {
                        confirmButtonText: '确定',
                        cancelButtonText: '取消',
                        type: 'warning'
                    }).then(() => {
                        this.getRequest('/logout');
                        window.sessionStorage.removeItem('user');//从sessionStorage中移除当前登录用户信息
                        //登出时从仓库中清空菜单项
                        this.$store.commit('initRoutes', []);
                        this.$router.replace('/');
                    }).catch(() => {
                        this.$message({
                            type: 'info',
                            message: '已取消注销登录'
                        });
                    });
                }
            }
        }
    }
</script>
<style>

    .homeRouterView {
        margin-top: 10px;
    }

    .welcomeMessage {
        text-align: center;
        font-size: 30px;
        font-family: 华文行楷;
        color: #409eff;
        padding-top: 50px;
    }

    .homeHeader {
        background-color: #409eff;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0px 15px;
        box-sizing: border-box;
    }

    .homeHeader .title {
        font-size: 30px;
        font-family: 华文行楷;
        color: #ffffff
    }

    .homeHeader .userInfo {
        cursor: pointer;
    }

    .el-dropdown-link img {
        width: 48px;
        height: 48px;
        border-radius: 24px;
        margin-left: 8px;
    }

    .el-dropdown-link {
        display: flex;
        align-items: center;
    }
</style>